FIELD: well drilling. SUBSTANCE: equipment is provided with common central control and maintenance block connected by means of tubular passage for servicing personnel and service lines with radially disposed periphery self-contained blocks each of which has retractable water-separating adapter installed on wellhead for lifting and sealing of operation equipment upon completion of drilling operations. Central block has rooms of dwelling complex and hatch with coaming platform for landing of the underwater apparatus. EFFECT: higher efficiency. 4 dwg
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